I created a GenCon inspired playlist on Spotify for everyone's enjoyment.  If you search for "GenCon" it should come up.  It's called "GenCon 2018" by Venger1342.  The search is case sensitive, so you need to capitalize the G and C. 

Hopefully it comes in handy for the road trip.  Please feel free to recommend additional songs that I overlooked. 

Enjoy!